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2 Northwest Historical Timeline 1926 – Northwest Airways takes to the sky. 1938 – Northwest develops the first practical aviation oxygen mask. 1948 – The “Red Tail” is painted on all Northwest aircraft for the first time and creating a trade mark. 1955 – Northwest voluntary becomes the first airline to operate without government subsidy on Trans-Pacific and United States-Alaska routes. 1960 – Northwest begins “fastest U.S. jet service to Asia” with Douglas DC8 aircraft. 1971 – Northwest is honored for noise abatement leadership by national Organization. 1976 – Northwest is the first airline approved by FAA to install coordinated flight crew training. 1988 – Northwest is bans smoking in all North America flights, the first major U.S. airline to do so. 1991 – Northwest and KLM Royal Dutch Airline launch their first joint service.

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3 Business of Operation The parent company of Northwest Airlines, Inc. Generates more than 95 percent of the Northwest Airlines Corporation’s operating revenues Totaling more than $11 billion in 2000 Its stock is traded under the symbol NWAC on the NASDAQ National Market System The principal subsidiaries of Northwest Airlines Corporation include: Northwest Airlines, Inc., Express Airlines I, Inc., MTL, Inc., Northwest PARS, Inc.